Error Codes P11A8, P366, P367

[Colin2206]

Peugeot 207cc, 2006, 1.6, VTi, petrol.

I'm doing the 100,000 mile service on my wife's car. It is running fine, although not being used much in the last 18 months due to lockdown. Spark plugs good condition, exhaust clear, doesn't use too much oil, starts ok, not noisy and has the power you would expect. Now the engine warning light, MIL, has been on for some time. In the past, I tried to get rid of it, changed the O2 sensor, cleaned the air valve etc. and the light goes away for a couple of weeks but always comes back. Also changed the camshaft sensors as they came up sometimes. As the car runs ok, gave up trying to get the MIL off.
So I checked the errors this time and got P366, P367 and P11A8. The first two relate to the camshaft, but the sensors were replaced in the last year and the car runs ok.
P11A8 is new to me, there are some references on line to an camshaft exhaust dephasing fault but I am struggling to understand what this is. The car passed it's MOT emissions in March without any trouble.

Any pointers would be appreciated.

Colin.

[Colin2206]

Eventually found a YouTube of someone changing a dephaser, I think. Seems to be a lot of names this thing goes by. On the 1.6 vti it is immediate below the dipstick top bracket, held by one 10mm head bolt. Awkward, disconnect lead and pull out. It is a solenoid, the working end has a fine mesh cover, clean off (I used carb cleaner). Check rings move freely against springs. I also checked for continuity across the solenoid and then replace. I have deleted all faults and the car is running ok but I've been here before and it can take a few days for the errors to present.

[Colin2206]

As I feared the fault has reappeared.
I have checked the TIMING CONTROL SOLENOID VALVE, as I believe the part is correctly called. It passed all tests with flying colours. Similarly, the two camshaft position sensors.
So before I spend £50 on parts, which I am not sure are faulty in the first palace, any suggestions on what else may trigger this fault?

[RichardW]

As ever you need some live data to try and see what is going on. Is this a belt or a chain engine? If a belt has it been changed? If a chain, is there a possibility it's stretched or the tensioner is in trouble?

[Colin2206]

Thanks for the quick reply.
I have a basic code reader but it does seem to have a live recorder on it so I will give that a go, though not sure how to interpret any results! I've been paying closer attention to the car in the last week or so. I feel the exhaust is a tiny bit harsher after the light comes on but can't say I've noticed any drop in mpg, power or throttle response. That said, it's not like we thrash the car.

According to Haynes it is a chain fitted to the VTi engine, which this is. No regular maintenance specifically identified but there is a measurement procedure listed, requiring special tool (£50 off ebay). Seems a bit of a job.

As the car runs ok and we are doing low mileage, I'll eliminate everything else first.

[manishkumar]

Did you ever get to a solution for this, I have exactly the same faults, changed the sensors but comes back in a few days.

[GiveMeABreak]

Colin, I've just caught up with this post and am aware this was 5-6 months ago now, but has been resurrected by a new poster, so worth a response at this stage. Note that the last 2 codes are short of a digit / character, so these are incomplete, but I suspect they are P0366 and P0367. That being the case, here are the fault descriptors for you:

In all the following cases it points to the Camshaft position Sensor. If you have changed this, did you get a decent branded part? Cheap parts are often dead on arrival or don't work. If you need the part number, let me know.

Fault Code:	P0366
Description of Fault:	Exhaust cylinder reference sensor signal fault : Coherence. Detection of a disturbance on the signal from the exhaust camshaft sensor (Tooth problem). The following conditions have to be met: - Engine management ECU in main triggering phase - Error detected in the synchronisation phase on starting
Conditions for Fault to clear:	At the end of one revolution of the camshaft, the error factor in this revolution is examined. If no error is identified, the deletion counter is incremented and compared to the threshold 10. If the threshold is reached, the fault P0366 disappears
Downgrade Modes whilst Fault is active:	Prohibition of adaptation and control of the exhaust camshaft. In the event of a double fault on the inlet camshaft and the exhaust camshaft, injection is deactivated on restarting
Symptoms:	Starting impossible Lack of power
Suspect Areas:	Camshaft position sensor

Fault Code:	P0367
Description of Fault:	Exhaust cylinder reference sensor signal fault : Coherence. Detection of a loss of signal from the exhaust camshaft sensor. The following conditions have to be met: - Engine management ECU in main triggering phase - engine running
Conditions for Fault to clear:	Exhaust camshaft sensor signals acquired and plausible.
Downgrade Modes whilst Fault is active:	Prohibition of adaptation and control of the exhaust camshaft Change to butterfly mode Deactivation of checking of the canister purge
Symptoms:	Lack of power Restarting impossible if there is a double signal fault on the inlet camshaft and the exhaust camshaft
Suspect Areas:	Camshaft position sensor Electrical harness

Fault Code:	P11A8
Description of Fault:	Fault in the exhaust camshaft dephasing : Coherence. Difference between the theoretical position of the exhaust camshaft dephaser at rest and that measured. The following conditions have to be met: - Adaptation of the exhaust camshaft dephaser completed - Exhaust camshaft dephaser temperature between 0 and 130 °C
Conditions for Fault to clear:	Adaptation of the exhaust camshaft dephaser carried out successfully at the next start-up
Downgrade Modes whilst Fault is active:	Change to butterfly mode Uncrossed position of the exhaust camshaft (idle position) Deactivation of the canister purge function
Symptoms:	Stalling after starting Unstable idling Lack of power Emissions outside the norms Excessive fuel consumption Acceleration difficult on exiting sustained idle (Engine hesitation / Drop in engine speed)
Suspect Areas:	Engine ECU Exhaust camshaft dephaser Exhaust camshaft dephaser sensor

[manishkumar]

Hi
Thank you for your prompt update, I have all 3 codes come up as you have listed, we have changed both Cam Shaft Sensors, but do we also need to change the Dephaser?
Thanks again

[Huskyxantia]

Test the sensor with multi meter see what ohms it gives

[GiveMeABreak]

Hi
Thank you for your prompt update, I have all 3 codes come up as you have listed, we have changed both Cam Shaft Sensors, but do we also need to change the Dephaser?
Thanks again

Also be aware that cheap sensors can fail or simply not work - we have had cases here where people have changed them and the problem remains until they used a decent branded sensor of OEM quality or equivalent.

[Colin2206]

In my case part of the problems eventually were tracked down to intermittent faults on two coil packs. The big problem here was that they were intermittent. Eventually one of them started to soot up the spark plug and by checking the car soon after start up from cold, came to the ignition coil. If left to warm up the car ran a lot better and the soot burnt off the plug. Also the error codes were not consistent.
Second problem was the timing. I had changed the plugs, sensor, oil valves but the light still came on. I got a cheap kit off Ebay and checked the timing. It was out by the tiniest amount, so small I could have strong armed the locking device into place if I had been so minded. Error code now gone. I suspect the timing set up is overly sensitive on these cars as all the mechanical/combustion signs were ok.

[Colin2206]

Up date, again.
The car has been running more or less as it should but I used it for 500 miles or so before letting my wife loose with it... and guess what?
Yes, your correct, faults came back, P014 and P11A8!
The usual suggested culprits are the camshaft sensor, exhaust side and the "dephase oil valve" have been changed, twice, and the current ones meet all the the multimeter tests (not as good as an oscilloscope I know).
What I have noticed is, if I clear the faults (after cleaning and checking ther sensor and valve), they are logged under pending almost immediately but only make it all the way throught to actual after several hundred miles which doesn't really make sense to me.
I don't understand how this side of the car works but I am wondering if the "Clear Faults" procedure is in fact leaving some sort of memory?

Any suggestions would be welcome. It has been a long two years with this car and I'll have to be firm with it soon.

[palomino68]

Hello. First of all sorry for my english. My 207 features the P11A8. I did the same thing you have done, with the same results as you. Now I am waiting for the screws to fix the VVT, because I had the exhaust camshaft out of position. Tomorrow I will mount them and I hope the happy error is over.

Link to a video

[Colin2206]

Thought I'd let people know how I'm getting on. I have posted elsewhere.

We are using the car more extensively now. It starts ok, a little lumpy on idle, but otherwise runs fine.
Recurring fault codes are P0366 and P011A8. After deleting the Codes, the P011A8 is logged in Pending almost immediately but takes 500 miles to make it through to actual (and switching on the MIL). The only other information I can get from the Code Reader is an occassional misfire in Cyl 4, 6 misfires in 500 miles. I don't have any figures for what is considered ok but it doesn't seem high. When the MIL does come on, I think the engine runs a tiny bit rougher but it is very slight.

I'm reluctant to spend more time and money without a clear way forward. For the moment I'll keep running the car and see what happens.

[PhilN]

I have the same fault codes on my son's 208 1.2 but after deleting them, they come back.
I changed a sensor at the front left of the engine as you look from the front. The one you unplug, undo with a star socket and it has the mesh. Think its a solenoid of some sort.
It this sensor the dephaser or something else. There also looks like another sensor at the back, opposite to the one I changed. Is this the same type of sensor? are both different? are these the dephasers?
Got the Haynes manual but doesn't mention dephasers.
The amber MIL comes on and it runs a bit rougher and sounds sportier!! I have bought a good code reader so I have a report but don't know what the problem is even though I have report.
Long and short of it is; what do I need to change, is there a difference between timing solenoids and a dephaser?
The light can go off for a few days and car runs very smoothly with engine ticking over perfectly.

Any help very much appreciated. Thank you in advance.